"apostille" -- does the OED2 need an augmented definition?

[Joel S. Berson]

OED2 has for "apostil | apostille, n." the following definition:  "A
marginal note, comment, or annotation."

I am being required to obtain an apostille for a notarized legal
document going outside the U.S.  The office of the Secretary of the
Commonwealth of Massachusetts provides the following definition:

"An Apostille is a document ... that verifies the authenticity of the
signature on [a] document; the capacity in which the person signing
the document acted; and the identity of any stamp or seal affixed to
the document. The Apostille is a specific form of authentication for
countries that participate in the Hague Convention of 1961."

In Massachusetts only the office of the Secretary is authorized to
issue apostilles.

This use of "apostille" seems more than simply "a marginal note".

Joel

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